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x + y = 12
x  y = 10
What is the value of the xdeterminant for the system shown?
22
12
2
 one year ago
 one year ago
x + y = 12 x  y = 10 What is the value of the xdeterminant for the system shown? 22 12 2
 one year ago
 one year ago

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j814wongBest ResponseYou've already chosen the best response.0
You use a 2x2 matrix for the system
 one year ago

j814wongBest ResponseYou've already chosen the best response.0
The determinant of a 2x2 matrix is in this form dw:1347994109583:dw To find the determinant of such a matrix, you would use the equation of adbc
 one year ago

j814wongBest ResponseYou've already chosen the best response.0
x + y = 12 would be for ab x  y = 10 would be for cd
 one year ago

shaik0124Best ResponseYou've already chosen the best response.0
2x=22 x=11 is answer@den
 one year ago

j814wongBest ResponseYou've already chosen the best response.0
For a 2×2 matrix, its determinant is found by subtracting the products of its diagonals (backward slash subtracted by the forward slash)
 one year ago
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